if the height and radii of two cylinders are in the ratio 2:3 and 4:5 find their curved surface areas
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Answer:
Curved surface area of 1st cylinder = 88x/7x
Curved surface area of 2nd cylinder = 176x/7x
Step-by-step explanation:
Height of first cylinder = 2x
Radius of first cylinder = 3x
Height of second cylinder = 4x
Radius of second cylinder = 5x
Curved surface area of cylinder = 2πrh
Curved surface area of 1st cylinder = 2 × 22/7 × 2x × 3x
= 264x/21x
= 88x/7x
Curved surface area of 2nd cylinder = 2 × 22/7 × 4x × 5x
= 880x/35x
= 176x/7x
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